Australian Rules Football is a physical game, but there is no room in the sport for a cheap shot like this.
During a Sydney Aussie Football League match between the UNSW/ES Bulldogs and Western Suburbs, No. 26 in black delivered an absolutely brutal sucker punch to No. 31 in white. In case you missed it the first time, don't look at where the ball is. The cheap shot is at the bottom of the clip.
According to this Twitter thread, the man on the receiving end of the sucker punch is okay.